I am using latest SWPM SP20, when I go for SCS installation installation, it is asking for profiles in new setup. Can you please help because earlier it used to ask SID and /sapmnt path. Since I do not have profiles available in new environment, how to proceed

some details are missing from your description so the answer I give is based on this more or less unknown scenario.It sounds like you are copying a Distributed system. For that, you have to execute all the services in SWPM, in the orderthey appear in the selection menu (from top to bottom). No step must be skipped!The first step is the ASCS installation, during which the profiles are being created. Did you execute this step? Is the /sapmnt available on the SCS host?

For a more precise answer, please provide the sapinst_dev.log from the failing SCS installation.